building docker image fails on rpi

[alexeinz]

Hi, I tried building image but it constantly fails on python setup.py egg_info it claims that freetype and png are not there, but both are installed using apt-get with no issue. i am on ARMBIAN 5.60 stable Debian GNU/Linux 9 (stretch) , running docker with no other issues.... is there any prebuilt rpi image available maybe ?

Complete output from command python setup.py egg_info:                                                                                         
    ============================================================================                                                                   
    Edit setup.cfg to change the build options                                                                                                     

    BUILDING MATPLOTLIB                                                                                                                            
                matplotlib: yes [2.2.3]                                                                                                            
                    python: yes [3.6.7 (default, Oct 22 2018, 11:32:17)  [GCC                                                                      
                            8.2.0]]                                                                                                                
                  platform: yes [linux]                                                                                                            

    REQUIRED DEPENDENCIES AND EXTENSIONS                                                                                                           
                     numpy: yes [not found. pip may install it below.]                                                                             
          install_requires: yes [handled by setuptools]                                                                                            
                    libagg: yes [pkg-config information for 'libagg' could not                                                                     
                            be found. Using local copy.]                                                                                           
                  freetype: no  [The C/C++ header for freetype2 (ft2build.h)                                                                       
                            could not be found.  You may need to install the                                                                       
                            development package.]                                                                                                  
                       png: no  [pkg-config information for 'libpng' could not                                                                     
                            be found.]                                                                                                             
                     qhull: yes [pkg-config information for 'libqhull' could not                                                                   
                            be found. Using local copy.]                    

[schollz]

No, I think the best way is to just use the source for raspberry pi

[Mazotis]

pull request #140 fixes this issue